Feed mechanism for swaging machines



Apr. 24, 1923. 1,452,740

C. 5. JACOBS FEED MECHANISM FOR SWAGING MACHINES Filed June 20, 1921 2 Sheets-Sheet 1 Apr. Z4, 1923. 1,452,740

(3. S. JACOBS FEED MECHANISM FOR SWAGING MACHINES FiledJune 20, 1921 '2 Sheets-Sheet 2 Gnome Patented Apr. 24, 1923. V

UNITED STATES PATENT OFFEQE.

CLARE S. JACOBS, OF DETROIT, MICHIGAN, ASSIGNOR TO TUBE PRODUCTS COMPANY,

9 OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

FEED MECHANISM FOR- SWAGING MACHINES.

Application filed June 20, 1921.

To all whom it may concern: 7

' Be it known that I, CLARE S. Jnoons,

a citizen of the United States, residln at Detroit, in the county of Wayne and .5 of Michi an, have invented a new and useful Feed echanism for Swaging Machines,

of which the following is a specification.

This invention relates to rod or tube swaging machines and more particularly to feed mechanisms for 'such machines.

The feeding of the work to such machines has heretofore been effected manually, a

considerable number of men being in some cases required to overcome the resistance of the machine and insure a proper advance of the work. Owing to the violent lateral vibration of the work, responsive to the hammer blows of the swaging dies of the machine, the employment of a mechanical feed, although obviously highly desirable, has not been regarded as applicable to machines of this type.

It is the object of the present inventlon to provide mechanical means for advancing the work to the dies of a swaging machine, which means will subject the work to a constant feed, and will yet permit the considerable vibratory movement of the work, transverse of its axis, which must occur in response to the heavy blows of the swaging dies.

A preferred embodiment of the invention is hereinafter described and is illustrated in the accompanying drawings, wherein,

Fig. 1 is an end view of the die or hammer casing of a swaging machine showing the improved rod or tube feed mechanism mounted upon said casing.

Fig. 2 is a side view of the same.

Fig. 3 is a vertical sectional view taken 'upon line 33 of Fig. 2.

Fig. 4 is a vertical section taken upon line 4- 4 of Fig. 1, and showing the drive gearing for the feed mechanism.

Fig. 5 is a vertical section on line 55 of Fig. 1, showing the work advancing roller.

In these views the reference character 1 designates a cylindrical casing, in which is housed the hammers or other work-fashioning elements of a rod or tube swaging machine. One end 2 of the casing 1 is hinged, as indicated at 3, to provide for access to said mechanism (not shown) within the easing. The normal positlon of said hinged tate Serial No. 478,878.

end, shown in the drawings, is maintained by a headed pin 4: engaging in registering lugs .5 and 6 respectively formed upon said end and upon the body of the casing. The closure 2 is formed adjacent its top and bottom with integral horizontal ribs 7, which are flanged toward each other adjacent the free edge of said closure, as indicated at 8, and a gear casing 9 is secured by bolts 10 to said flanges. A pair of horizontal shafts 11 are journaled above and below the axis of the casing 1, equidistantly from said axis, said shafts being journaled at one end in-a wall of the casing 9 and at their other ends in a bearing plate'12 secured to the ends of the ribs 7. Upon said shafts there are respectively'splined two pairs of-rollers 13, the opposed faces of each pair being pee ripherallybeveled for engagement with the work, indicated at 1 1. Also the rollers of each pair are urged yieldably toward each other by springs 14 coiled upon the shafts 11. Said springs maintain engagement of the beveled faces of the rollers 13 with the work, and insure that the rollers will frictionally grip the work with suflicient firmness to insure the desired actuation of the work by the rollers. Each shaft 11 has collars 15 respectively mounted upon its end portions as abutments for the springs 14, and in order to properly regulate the compression of said springs, it is preferred to adjustably engage said collars with the shafts 11 by means of screw-threads. The casing 9 encloses a drive gearing for the shafts 11, which gearing comprises two worm gears 16 and a worm 17 arranged between and driving both of said gears. Said worm is fast upon a drive shaft 18, transverse to the two shafts 11, and journaled in bearings 19 formed integrally with opposed walls of the casing 9. Said shaft projects from the casing in the direction from which the work is fed and carries upon'the portion thus projecting a pulley 20 driven through a belt 21 from any suitable source of ower.

n the operation of the described feed mechanism a gradual and powerful rotation length, and the engagement of the beveled 11o ers at one side of the work will recede and th two at the other side will advance so as to conform to the shifting of the work without interrupting or even varying the forward advance of the work to the swaging In case of a vertlcallyr acting.

hammers. vibratory movement of the work, one of the pairs of rollers 11 will spread apart to accommodate such movement and the rollers of the other pair will approach each other sufliciently to maintain the desired frictional driving pressure upon the Work. ,The two described movements of the rollers will be combined when the vibration is in some radical dii ection other than vertical or horizontalg Thus it is seen that the invention accomplishes a mechanical feed of the work despitethe violentvibratory action of the work responsive to the swaging hammers, and the feed lthus provided is much less expensive and a great deal moreuniform and reliable than anyfeed depending upon manual effort.

Furthermore, the violence of the vibratory movement is held in check by the coiled sequently enabled to accomplish a more efficient and satisfactory operation upon the work. i

What I claim is:

1. In a rod or tube feed mechanism, the

combination with ,two parallel shafts, of two opposed pairs of feed rollers respectively splined upon said shafts, springs urging the rollers o-feach pair towardeach other, and

a common driving means for said shafts,

2; In a rod or tube feed mechanism, the

combination with two parallel shafts, of two opposed pairs of feed rollers splined upon said shafts, the opposed faces of each pair of opposed pairs of work engaging rollers, the

rollers of each pair being movable independently in the direction. of their common axis, means urging the rollers of each pair yieldably toward each other, and a common drive means for said rollers.

5. In a. rod or tube feed mechanism for swaging machines, the combination with a casing for the swaging mechanism, said casing having ahinged end member through which the work is. fed, of feed mechanism mounted ,upon said end member for automatically advancing thework. springs 14k and the swagingmachme is con- 6. In arc d or tube feed mechanism for swaglng machines, the combination with a casing for the swaging mechanism, said casmg having. a hinged end member through which the work is fed, of feed mechanism mounted upon said end member for automatically advancing the work, said feed mechanism being yieldable to afford the work, a lateral movement in any dlrection.

Intestiinony whereof I sign this specification."

CLARE S. JACOBS. 

